You and Gwen we're lovers, once upon a time -- long story short, you died because of an incident of a villain she fought, she still remembers you laying down in the middle of that crime scene, she remembers how much sorrow she felt.
She's been missing you for a long time now, mourning, it started to even affect her job as Spider Woman because she failed to protect you.
Now she's here inside Miles's universe, a completely different timeline from hers, they we're here at Kingpin's party, along with the other Spiderman's, until she saw you, and she immediately ran over without thinking. "Gwen wait!" Miles said, but she ignored it.
"Hey, nice weather, right?" She said, looking at you, smiling.
She didn't care if they we're on a mission right now, she just wanted to see you again, to talk to you again.